Cop cone



June i2, 1923,

J. o. McKEAN COP CONE Filed Dec. 2'7. 1922 I M I I I I ZIIII;fillIIIIIIIIIIIIII'I'IIIIII'II.

' INVENTOR A TTORNE K5 Patented June 12, 1923.

NITED STATES JOHN 0. MOKEAN, OF WESTFIELD, MASSACHUSETTS.

GOP CONE.

Application filed December 27, 1922. Serial No. 609,295.

10 all whom it may concern:

Be it known that I, JOHN O. MCKEAN, a citizen of the United States, andresident of Westfield, in thecounty of Hampden and State ofMassachusetts, have invented a new and useful Improvement in Cop Cones,of which the' following is a specification.

The Winding surfaces of cop cones, especially when the cones are made ofpaper, are at times irregular. This is caused frequently by the walls ofthe cones being thicker at certain points than at others, or by thewarping of the walls of the cones in the drying out process after thecones are made. These irregular cones jump and vibrate considerably whenbrought into contact with their driving rolls and the cones are drivenat uneven surface speeds, due to the varying driving contact of thedriving roll along the cone. These defects cause the yarn to wind badlyand to run out of true until a substantial amount of yarn has been woundonto the cone.

The object of my invention is to overcome these objectionable featuresby providing the winding surface of the cone with a driving element,such for instance as an exterior circumferential bead adapted to beengaged by the driving roll when the cop'is brought into windingposition, the weighted cone holder serving to cause the said bead to bequickly ironed out sufficiently by the winding roll to bring the sameinto concentric relationship to the axis of rotation of the cone andthus ensuring the even driving of the cone.

Practical embodiments of my invention are represented in theaccompanying drawings, in which- Fig. 1 represents a cop cone made ofpaper with my invention applied to its winding surface in the form of acircumferential exterior embossed bead, the cone being shown in itsoperative relationship to the driving roll. p

Fig. 2 represents a similar view showing a somewhat warped cop cone inlongitudinal central section.

Fig. 3 represents a similar view showing in longitudinal central sectiona cop cone in which the wall of one side is thicker than on the otherside. I

Fig. 4 represents a detail section showing the exterior circumferentialbead as an enlargement of the wall of the cone and integral therewith.

Fig. 5 represents a similar view showing a separate ring secured inposition around the winding surface of the cone toform the exteriorcircumferential bead.

The cop cone driving roll is denoted by 1 and its shaft by 2. Theweighted cop cone holder is denoted by 3. The cop cone 4 is herein shownas made of paper.

In the embodiments shown in Figs. 1, 2 and 3 the walls of the cop coneare pressed outwardly to form an exterior circumferential embossed bead5 located a distance from the base of the cone and outstanding slightlybeyond the winding surface of the cone in position to be engaged by thedriving roll 1 during the beginning of the windmg operation.

In the embodiment represented in Fig. 4, the exterior circumferentialhead 6 is shown as an enlargement of the body of the cone and integraltherewith.

In the embodiment represented in Fig. 5, a separate ring 7 is secured inposition around the cone to form the exterior circuInferential bead.

As the winding operation starts, the weighted cone holder 3 will pressthe exterior circumferential bead on the cone against the driving rollsufiiciently to cause the driving roll to iron out the head to a greateror lesser extent to bring the same into concentric relationship to theaxis of rotation of the cone and thus immediately stop the cone fromjumping or vibrating and also ensuring the even winding of the yarn ontothe cone from the beginning of the winding operation, irrespective ofwhether the winding surface of the cone is somewhat irre ular, due tothe varying thickness of wa ls, warping or other causes.

For the proper winding of the cop it is very important that the cone bedriven at all times at an even speed. For instance if the cone has aflat surface it is impossible to drive it an even speed for the drivlngroll will engage the cone at so many differentpoints. By providing thecone with the exterior circumferential driving head, a positive oint ofdriving contact between it and t l ie driving roll is provided until theyarn is wound on the cop beyond the said contact, the winding by thistime being leveled up and the cone running true.

It is evident that the forms illustrated herein are only a few of themany different forms which my invention might take;

hence, I .do not Wish to limit myself to the particular embodimentsherein shown and described, but

What I claim is 1. A cop cone provided with a circumferential drivingelement outstanding from its winding surface.

2. A cop cone provided With an exterior circumferential driving bead.

3. A cop cone provided With an exterior circumferential driving beadlocated a fixed distance from the base of the cone.

4. A copcone having an exterior circumferential driving bead formedintegral therewith.

-5. A cop cone having an exterior em? bossed' circumferential drivingbead.

7. A device for ensuring theeven driving of a cop cone comprising anexterior circumferential driving bead on the Winding surface of thecone, and a driving roll arranged to iron out said bead sufiiciently to"bring it into concentric relationship to the axis of rotation of thecop.

In testimony, that I claim the foregoing as my invention, I have signedmy name this 22nd day of December, 1922.

JOHN o MoKEAN.

